中国有色金属学报（英文版）
中國有色金屬學報（英文版）
중국유색금속학보（영문판）
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2011年
z2期
380-383
,共4页
刘燕%李亮%卢国龙%韩志武%刘金丹%于思荣
劉燕%李亮%盧國龍%韓誌武%劉金丹%于思榮
류연%리량%로국룡%한지무%류금단%우사영
电沉积%分形%润湿性%形貌
電沉積%分形%潤濕性%形貌
전침적%분형%윤습성%형모
electrodeposition%fractal%wettability%morphology
采用电沉积的方法在灰铸铁表面制备了Nano-Al2O3/Ni-Co复合镀层.与纯镍涂层相比,复合镀层表面平整、细致.运用分形原理计算了分形表面的结构参数,分形维数为1.301 3.测量了接触角,其最大值达到105°.运用Cassie-Baxter方程解释了润湿性与分形结构的关系.结果表明:随着分形维数的变化润湿角而变化,但是接触角的变化与分形维数的比率并不呈现线性关系.
採用電沉積的方法在灰鑄鐵錶麵製備瞭Nano-Al2O3/Ni-Co複閤鍍層.與純鎳塗層相比,複閤鍍層錶麵平整、細緻.運用分形原理計算瞭分形錶麵的結構參數,分形維數為1.301 3.測量瞭接觸角,其最大值達到105°.運用Cassie-Baxter方程解釋瞭潤濕性與分形結構的關繫.結果錶明:隨著分形維數的變化潤濕角而變化,但是接觸角的變化與分形維數的比率併不呈現線性關繫.
채용전침적적방법재회주철표면제비료Nano-Al2O3/Ni-Co복합도층.여순얼도층상비,복합도층표면평정、세치.운용분형원리계산료분형표면적결구삼수,분형유수위1.301 3.측량료접촉각,기최대치체도105°.운용Cassie-Baxter방정해석료윤습성여분형결구적관계.결과표명:수착분형유수적변화윤습각이변화,단시접촉각적변화여분형유수적비솔병불정현선성관계.
Nano-Al2O3/Ni-Co composite coatings were formed on gray cast iron surface by electrodeposition method.The composite coating has a more flat surface and compact microstructure than the pure Ni-Co coating.The fractal surface structui parameters were calculated by fractal theory and the average fractal dimension is 1.301 3.The contact angles were measured and the maximum value reaches 105°.The relationship between wettability and fractal structure was explained by Cassie-Baxter equation.The results indicate that wetting behavior varies with the fractal dimension.But the change of contact angels is not directly proportional to the fractal dimension.
